Be sure to do relaxation exercises before running to relax your body so as not to get hurt while running. Just do some simple actions: (1) move your wrists and ankles. (2) lunge leg press to relax ligaments.
First of all, you should pay attention to the rhythm, breathe regularly and don't get angry.
Pay attention to the arm movements when running, just swing your arm back and forth naturally with your legs, and the swing range is similar to that of putting your fist back to your waist.
You can listen to music properly during running, which makes it easier to run and see your personal hobbies. If it is particularly long or professional, listening to music is not recommended.
If you just start running or have a bad knee, you can wear knee pads. Don't run for too long in the early stage, step by step, and don't wear knee pads often, so you can't exercise your knees and don't be afraid of hurting them. I think this depends on long-term exercise. People with knee injuries often run for a long time suddenly, rather than step by step.
Pay attention to scientific exercise, properly grasp the intensity, step by step. You must stretch and relax after running, which can prevent lactic acid from accumulating and grow stronger muscles and bodies.